Wednesday, September 12, 2018

NRC And BWROG Taking Greater Interest In SRVs, Or Angling to Hide Problems

They should invite me to this meeting?

LER Reduction, they guys make me laugh. It is probably the only reason of this meeting. These guys constantly violate tech specs and don't shutdown when required.

If they change their Teck Specs, they won't fix the problem. They will just hide the problem from outsiders. On the positive, they won't ruin the integrity of the employees by constantly violating meaning and intent of the tech specs.

Basically I have been working on this for many years. Do a google search on Popperville Town Hall and Mike Mulligan
BWROG/NRC Meeting September 12, 2018
Copyright 2018, BWR Owners’ Group, All Rights Reserved
BWROG Target Rock SRV Performance Improvement Committee
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History/Scope
Formed in 2016
Committee Scope:  address the common causes of repetitive Target Rock 2-stage SRV as-found set-point test failures in the fleet. • Technical Exchange Meetings:  share site set point drift performance, best practices, roadmap planning • 2-stage valve focus • Scope focused on setpoint drift
Membership:  DTE/Fermi, Duke/Brunswick, Exelon/FitzPatrick, NPPD/Cooper, PSEG/Hope Creek, TVA/Browns Ferry
Copyright 2018, BWR Owners’ Group, All Rights Reserved
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2017/18 Activities
• Industry-shared IBAD procedure (application of Platinum to disc surface) • Autoclave Screening Test - used to help develop sputtering application process of Platinum on test coupons and comparison to IBAD.  Obtained positive results. • Plasma Enhanced Magnetron Sputter Coating of (Quantity 3) pilot discs with Platinum.  Performed steam validation testing with positive results. In process of obtaining BWROG product for utilizing Sputtering for application of Platinum on SRV pilot discs. • Static Autoclave Material Screening - baseline conditions of corrosion bonding with control group and screening other materials. (Started Aug. 24, 2018)
Copyright 2018, BWR Owners’ Group, All Rights Reserved
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2019 Planned Activities
Test different thickness of (sputtered) Platinum coated on pilot discs in valve lift tests. • Sputtering opens process space for different thicknesses of Platinum Coating. • Potential for fleet usage – Know that current thickness of Platinum coating provided step-improvement in set point drift performance.  – Does increase in thickness provide more protection from corrosion bonding?
LER Reduction 
Initial scoping effort to understand current Tech Spec Limits and alternative licensing approaches. • Not a funded project at this time. • Initial discussions among multiple BWROG committees.


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